Potatoes

Potatoes were introduced outside the Andes region 4 centuries ago and have become an integral part of world's food supply. It is the world's largest food crop after wheat, maize and rice. There are 5000 potato varieties world-wide. Potatoes were first planted between 8000 BC and 6000 BC. Potatoes contain vitamins, minerals although they are mostly known for their carbohydrate content.